HUP0101989A2 - Playback device - Google Patents

Playback device

Info

Publication number
HUP0101989A2
HUP0101989A2 HU0101989A HUP0101989A HUP0101989A2 HU P0101989 A2 HUP0101989 A2 HU P0101989A2 HU 0101989 A HU0101989 A HU 0101989A HU P0101989 A HUP0101989 A HU P0101989A HU P0101989 A2 HUP0101989 A2 HU P0101989A2
Authority
HU
Hungary
Prior art keywords
plate
storage
playback device
disc
predetermined
Prior art date
Application number
HU0101989A
Other languages
Hungarian (hu)
Inventor
Willy Buchs
Pierre Jeannin
Original Assignee
Robert Bosch Gmbh.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh. filed Critical Robert Bosch Gmbh.
Publication of HUP0101989A2 publication Critical patent/HUP0101989A2/en
Publication of HUP0101989A3 publication Critical patent/HUP0101989A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G11B19/2018—Incorporating means for passive damping of vibration, either in the turntable, motor or mounting
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Automatic Disk Changers (AREA)

Abstract

A találmány tárgya lejátszókészülék tárolólemez (1) lejátszására,amely lehetővé teszi a tárolólemez (1) lemezsíkra merőlegesrezgéseinek jobb csillapítását. A lejátszókészülék (10) tartalmaz egyelső lemezt (6) és egy második lemezt (4). A tárolólemez (1) befoghatóaz első lemez (6) és a második lemez (4) közé. A találmány értelmébena tárolólemez (1) és az első lemez (6) között egy előre adottterületen (15) belül előre adott távolság (20) áll fenn. Ez a terület(15), valamint ez a távolság (20) úgy van megválasztva, hogy alejátszókészüléknek (10) a lemezek síkjaira nagyjából merőlegesenfellépő, egy előre adott értéket meg nem haladó gyorsulású rázkódásaiesetén a tárolólemez (1) egy külső szélének (30) a tároló lemez (1)középpontjához (35) viszonyított rezgése amplitúdója egy előre adottamplitúdóérték alatt marad. ÓThe subject of the invention is a playback device for playing a storage disk (1), which enables better damping of the vibrations of the storage disk (1) perpendicular to the disk plane. The playback device (10) includes a first disc (6) and a second disc (4). The storage plate (1) can be clamped between the first plate (6) and the second plate (4). According to the invention, a predetermined distance (20) exists between the storage plate (1) and the first plate (6) within a predetermined area (15). This area (15), as well as this distance (20), is chosen so that in the case of vibration of the playback device (10) occurring roughly perpendicular to the planes of the discs, with an acceleration not exceeding a predetermined value, an outer edge (30) of the storage disc (1) the amplitude of its vibration relative to the center (35) of the storage disk (1) remains below a predetermined amplitude value. HE

HU0101989A 1998-04-07 1999-04-06 Playback device HUP0101989A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19815492A DE19815492A1 (en) 1998-04-07 1998-04-07 Player
PCT/DE1999/001032 WO1999052108A1 (en) 1998-04-07 1999-04-06 Playback device

Publications (2)

Publication Number Publication Date
HUP0101989A2 true HUP0101989A2 (en) 2001-09-28
HUP0101989A3 HUP0101989A3 (en) 2002-12-28

Family

ID=7863837

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0101989A HUP0101989A3 (en) 1998-04-07 1999-04-06 Playback device

Country Status (6)

Country Link
US (1) US6469976B1 (en)
EP (1) EP1068614B1 (en)
JP (1) JP2003527717A (en)
DE (2) DE19815492A1 (en)
HU (1) HUP0101989A3 (en)
WO (1) WO1999052108A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100421054B1 (en) * 2002-03-25 2004-03-04 삼성전자주식회사 Hard disk drive having a means for reducing disk fluttering

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534405A1 (en) 1982-10-06 1984-04-13 Hariton Bernard Device and method of holding a disc on a turntable by suction
US4641152A (en) 1986-02-24 1987-02-03 Producers Color Service, Inc. Fixturing apparatus for vibration dampened optical disc recording
NL8700819A (en) 1987-04-08 1988-11-01 Philips Nv DEVICE FOR RECORDING OR READING INFORMATION FROM AN INFORMATION PLATE.
JPS63259862A (en) 1987-04-16 1988-10-26 Pioneer Electronic Corp Disk clamping device
EP0632441B1 (en) 1993-06-14 2002-11-27 Kabushiki Kaisha Kenwood Holding apparatus for two types of optical disks
JPH08106692A (en) * 1994-05-19 1996-04-23 Pioneer Electron Corp Centering mechanism for double-sided disk
DE19642343C2 (en) 1996-10-14 1999-06-10 Bosch Gmbh Robert Process for regulating the focusing and guiding a light beam

Also Published As

Publication number Publication date
JP2003527717A (en) 2003-09-16
EP1068614A1 (en) 2001-01-17
DE19815492A1 (en) 1999-10-14
US6469976B1 (en) 2002-10-22
HUP0101989A3 (en) 2002-12-28
DE59902656D1 (en) 2002-10-17
EP1068614B1 (en) 2002-09-11
WO1999052108A1 (en) 1999-10-14

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Legal Events

Date Code Title Description
FD9A Lapse of provisional protection due to non-payment of fees